psql: Update \d sequence display
For \d sequencename, the psql code just did SELECT * FROM sequencename
to get the information to display, but this does not contain much
interesting information anymore in PostgreSQL 10, because the metadata
has been moved to a separate system catalog.
This patch creates a newly designed sequence display that is not merely
an extension of the general relation/table display as it was previously.
Example:
PostgreSQL 9.6:
=> \d foobar
Sequence "public.foobar"
Column | Type | Value
---------------+---------+---------------------
sequence_name | name | foobar
last_value | bigint | 1
start_value | bigint | 1
increment_by | bigint | 1
max_value | bigint | 9223372036854775807
min_value | bigint | 1
cache_value | bigint | 1
log_cnt | bigint | 0
is_cycled | boolean | f
is_called | boolean | f
PostgreSQL 10 before this change:
=> \d foobar
Sequence "public.foobar"
Column | Type | Value
------------+---------+-------
last_value | bigint | 1
log_cnt | bigint | 0
is_called | boolean | f
New:
=> \d foobar
Sequence "public.foobar"
Type | Start | Minimum | Maximum | Increment | Cycles? | Cache
--------+-------+---------+---------------------+-----------+---------+-------
bigint | 1 | 1 | 9223372036854775807 | 1 | no | 1
Reviewed-by: Fabien COELHO <[email protected]>
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/2a14b9609df1de4f2eb5a97aff674aaad033a7e6
Modified Files
--------------
src/bin/psql/describe.c | 189 +++++++++++++++++++--------------
src/test/regress/expected/identity.out | 7 ++
src/test/regress/expected/sequence.out | 13 +++
src/test/regress/sql/identity.sql | 2 +
src/test/regress/sql/sequence.sql | 4 +
5 files changed, 135 insertions(+), 80 deletions(-)
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